{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:TH4ESAN2JEB64J5GORHYFXGRFI","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"820c490ad20b7b1c3e105c5b3a9f1031eae6c9cfa7af924e3d164130186b49d0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2015-04-21T10:27:40Z","title_canon_sha256":"b70d11ab71418b6ba2be12e9e6300cf567cfe0e6d4ce86f308eda1481bfff07d"},"schema_version":"1.0","source":{"id":"1504.05375","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.05375","created_at":"2026-05-18T01:18:33Z"},{"alias_kind":"arxiv_version","alias_value":"1504.05375v2","created_at":"2026-05-18T01:18:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.05375","created_at":"2026-05-18T01:18:33Z"},{"alias_kind":"pith_short_12","alias_value":"TH4ESAN2JEB6","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"TH4ESAN2JEB64J5G","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"TH4ESAN2","created_at":"2026-05-18T12:29:42Z"}],"graph_snapshots":[{"event_id":"sha256:bd09a97a324989ce717a3e99d09fdc6e121b859853601adf4aaeec600e5a6967","target":"graph","created_at":"2026-05-18T01:18:33Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"In this study we analyze the phase and group velocity of three-dimensional linear traveling waves in two sheared flows, the plane channel and the wake flows. This was carried out by varying the wave number over a large interval of values at a given Reynolds number inside the ranges 20-100, 1000-8000, for the wake and channel flow, respectively. Evidence is given about the possible presence of both dispersive and non-dispersive effects which are associated with the long and short ranges of wavelength. We solved the Orr-Sommerfeld and Squire eigenvalue problem and observed the least stable mode.","authors_text":"Daniela Tordella, Federico Fraternale, Francesca De Santi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2015-04-21T10:27:40Z","title":"Dispersive to non-dispersive transition and phase velocity transient for linear waves in plane wake and channel flows"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.05375","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:9b1268d77a28ec1165a68414929c0beee51dd81d4ed0f037d3c98457b4124408","target":"record","created_at":"2026-05-18T01:18:33Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"820c490ad20b7b1c3e105c5b3a9f1031eae6c9cfa7af924e3d164130186b49d0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2015-04-21T10:27:40Z","title_canon_sha256":"b70d11ab71418b6ba2be12e9e6300cf567cfe0e6d4ce86f308eda1481bfff07d"},"schema_version":"1.0","source":{"id":"1504.05375","kind":"arxiv","version":2}},"canonical_sha256":"99f84901ba4903ee27a6744f82dcd12a05091a519db1b3a7e951b5a07ce9330f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"99f84901ba4903ee27a6744f82dcd12a05091a519db1b3a7e951b5a07ce9330f","first_computed_at":"2026-05-18T01:18:33.856928Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:18:33.856928Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xsLHWBsZypAHMJWxmyOGPMzGvSVsUCxJwJD54sB5csPD5jibB21GRwYNsIzNQKZmvig4seVlWfd5nFG7ToQvDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:18:33.857421Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.05375","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9b1268d77a28ec1165a68414929c0beee51dd81d4ed0f037d3c98457b4124408","sha256:bd09a97a324989ce717a3e99d09fdc6e121b859853601adf4aaeec600e5a6967"],"state_sha256":"a94d854bded0f392aaa08932650e7b03448edb9ec3f5dcbadba37bf502594674"}